Fuel Pump Operation Inspection

FUEL PUMP OPERATION INSPECTION
- Connect the Special Service Tools (SST)s New Generation Star (NGS) tester to the data link connector-2.
- Remove the fuel filler cap.
- Turn the ignition switch to ON.




- Select the SIMULATION TEST function on the NGS display.
- Turn the fuel pump relay from OFF to ON by using the "FP RLY". Operate the fuel pump relay and check if operation sound of the fuel pump is heard.
- If the operation sound is heard, do as follows.
- Measure the voltage at terminal B of the fuel pump connector (harness side). Voltage: Battery positive voltage (Ignition switch: ON)
- If the voltage is correct, check the following.
- Continuity of the fuel pump
- If the voltage is not correct, check the following.
- Wiring harnesses and connectors (Fuel pump relay - Fuel pump)
- If the operation sound is not heard, check the following.
- Fuel pump relay
- Wiring harnesses and connectors
- Main relay
- Fuel pump relay
- PCM